Dale's latest activity
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Dale reacted to renormalize's post in the thread A Error in Landau-Lifshitz Vol 2, equation (2), page 277 with
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Thanks for the link to the 4th edition of The Classical Theory of Fields (first published in 1975, not 1980). The only equations on pg... -
Dale reacted to Herman Trivilino's post in the thread B Understanding Newton's Third Law and the Net Force on Objects with Like.
FWIW the term action-reaction can imply that the action has some kind of different status than the reaction. As if one precedes the...
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Dale reacted to Ibix's post in the thread Help me understand why “Block Universe” is not scientifically proven with Like.
I'd say that the block universe has the least philosophical baggage (not counting "shut up and calculate"). The observation that the...
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Dale reacted to phinds's post in the thread Help me understand why “Block Universe” is not scientifically proven with Like.
Any such statement is an OPINION (or possibly an interpretation --- same thing), not a scientific fact.
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Dale reacted to bhobba's post in the thread I Physicists disagree wildly on what quantum mechanics says about real… with Like.
Actually, over the years, I have changed my view on QM interpretations. I still hold to the Ensemble interpretation. However, I no...
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Dale replied to the thread Help me understand why “Block Universe” is not scientifically proven.And regardless of the expertise or assertiveness of the opinion holder, it remains an opinion. It is a natural conclusion in the sense...
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Yes, I agree. But in this case, it's just a matter of not being able to problem solve: surely that's not something so dire that it can't...
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Dale replied to the thread B Work done when moving an object.I am glad that they understood what you meant and were able to help. I would like to be very clear that what they described was very...
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Dale reacted to kuruman's post in the thread B Understanding Newton's Third Law and the Net Force on Objects with Like.
You have not specified what the system is. The forces that are included in a free body diagram must be external to the system, i.e...
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Dale reacted to dainceptionman_02's post in the thread B Understanding Newton's Third Law and the Net Force on Objects with Like.
In the physics text for F(net) = ma, the text expresses how "F(net) must be the vector sum of all the forces that act on the body, and...
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Dale reacted to dainceptionman_02's post in the thread B Understanding Newton's Third Law and the Net Force on Objects with Like.
would pushing an object and gaining an acceleration from Newton's third law be considered an external force then? consider the normal...
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Dale replied to the thread B Understanding Newton's Third Law and the Net Force on Objects.If you push an object then Newton’s 3rd law says there are two forces. One force acts on you and one force acts on the object (and they...
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Dale replied to the thread B Understanding Newton's Third Law and the Net Force on Objects.In a free body diagram for a specified body you do not ignore any external force acting on the specified body. You do ignore any...
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Dale replied to the thread Being bad at Physics.Of course, talent and hard work are not independent. Frequently someone who is innately talented also works very hard at their talent...
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Maybe I shouldn’t have stated my opinions as if they were facts... Fair enough. I'm a kid, and I should probablybe staying away from...